Surf Forecasts:
How big are the waves at Katagai today (18 Jul):
- Morning surf: Morning surf (18 Jul, local time) - 3ft (0.9m), 9s period with ESE swell.
- Afternoon surf: Afternoon surf (18 Jul, local time) - 3.5ft (1.0m), 9s period with ESE swell.
- Evening surf: Evening surf (18 Jul, local time) - 3.5ft (1.0m), 9s period with ESE swell.
The current surf forecast for Katagai at 4AM is: 0.8m 9s primary swell from a East-southeast direction and 0.6m 4s secondary swell from a Southeast direction (forecast issued at 08:00pm July 17). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Jul) | 3ft (0.9m) | 9s |
| Afternoon (18 Jul) | 3.5ft (1.0m) | 9s |
| Evening (18 Jul) | 3.5ft (1.0m) | 9s |
Table - waves today at Katagai. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 30°C on Mon afternoon, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Fri 17 | Saturday 18 | Sunday 19 | ||||||||||||||||
6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||
Wave Height (m) Direction Period (s) | ESE 8 | E 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 |
Wave Graph  | ||||||||||||||||||
 kJ | 73 | 71 | 113 | 75 | 111 | 121 | 108 | 158 | 164 | 158 | 164 | 153 | 188 | 199 | 216 | 110 | 110 | 108 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 6:57PM1.31m | 5:50AM1.40m | 7:21PM1.31m | 6:41AM1.29m | 7:45PM1.32m | |||||||||||||
Low Tide | 00:16AM0.78m | 12:42PM0.23m | 1:03AM0.69m | 1:13PM0.40m | ||||||||||||||
 |  |  | | | | | | | |  | | |  | | | | | |
 | — | — | — | 4:35 | — | — | — | — | — | — | — | 4:35 | — | — | — | — | — | — |
 | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 25 | 25 | 26 | 26 | 27 | 26 | 26 | 26 | 25 | 25 | 25 | 27 | 27 | 27 | 27 | 26 |
Feels °C | 28 | 28 | 27 | 28 | 29 | 28 | 29 | 28 | 28 | 29 | 28 | 29 | 29 | 29 | 28 | 29 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | ESE 8 | E 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 |
| kJ | 73 | 71 | 113 | 75 | 111 | 121 | 108 | 158 | 164 | 158 | 164 | 153 | 188 | 199 | 216 | 110 | 110 | 108 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 8 | SE 8 | SE 4 | SE 10 | SE 9 | SSE 8 | SE 8 | SE 8 | S 8 | SSE 8 | SE 8 | SE 8 | S 9 | SE 8 | SE 12 | SE 8 | SE 8 |
| kJ | 12 | 11 | 11 | 12 | 15 | 12 | 28 | 17 | 17 | 6 | 35 | 16 | 31 | 14 | 28 | 6 | 14 | 14 |
Swell 3 Height (m) Direction Period (s) | S 8 | SE 14 | SE 13 | SSE 10 | SE 13 | SE 13 | SE 13 | SE 14 | SW 8 | SW 7 | S 8 | S 9 | S 8 | SW 7 | S 8 | S 10 | SE 12 | S 8 |
| kJ | 1 | 7 | 7 | 9 | 7 | 7 | 7 | 7 | 2 | 2 | 6 | 14 | 12 | 2 | 5 | 2 | 6 | 10 |
Wind waves Height (m) Direction Period (s) | SE 4 | SE 4 | SE 4 | — | — | SSE 4 | — | SSE 8 | SSE 8 | SSE 8 | — | — | — | SSE 8 | SSE 4 | SSE 8 | SSE 4 | SSE 4 |
| kJ | 19 | 15 | 18 | — | — | 7 | — | 45 | 44 | 35 | — | — | — | 69 | 12 | 66 | 13 | 10 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 230 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 18 | 18 | 23 | 23 | 23 | 23 | 18 |
Best forecast wave conditions in Chiba | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
Header Global | ||||||||||||||||||
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